Hyundai Coupes/Sedans 1986-1993 Repair Guide

Relay, Sensors And Computer Locations

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LOCATIONS



1986-89 Excel


A/C Capacitor -is located at the right rear of the engine compartment.
 
A/C Condenser Fan Relay -is located at the left front of the engine compartment.
 
A/C Diode -is located under the right side of the dash.
 
A/C Dual Pressure Switch -is located on the side of the receiver drier.
 
A/C Fast Idle Control Device (carbureted) -is located under the air cleaner at the base of the carburetor.
 
A/C Relay -is located under the right side of the dash.
 
Air Control Solenoid Valve -is located at the top of the engine on the transaxle side.
 
Back-Up Light Switch -is located at the front of the transaxle, near the radiator.
 
Bowl Vent Valve -is located on the top of the carburetor, on float chamber cover.
 
Brake Fluid Sensor -is located in the master cylinder reservoir.
 
Brake/Stop Light Switch -is located above the brake pedal.
 
Chime Bell -is located under the center of the dash.
 
Cold Advance Solenoid Valve -is located at the top of the engine on the transaxle side.
 
Cold Heater -is located at the right rear of the engine compartment, near the wiring harness grommet on the firewall.
 
Coolant Temperature Switch -is located on the intake manifold coolant passage.
 
Deceleration Solenoid -is located on the float chamber of the carburetor.
 
Distributor Advance Solenoid Valve -is located at the top of the engine on the transaxle side.
 
Door Warning Lamp Diode -is located under the center of the dash.
 
Electric Choke Relay -is located at the right rear of the engine compartment, on the firewall.
 
Enrichment Solenoid -is located on the float chamber of the carburetor.
 
Feed Back Carburetor (FBC) Unit -is located under the center of the dash.
 
Feedback Solenoid Valve -is located at the carburetor.
 
Flasher Relay -is located in the relay box under the left side of the dash.
 
Fuse Box -is located at the lower left of the dash.
 
Fusible Link Box -is located next to the battery.
 
Headlight Relay -is located in the relay box under the left side of the dash.
 
Horn Relay -is located in the relay box under the left side of the dash.
 
Idle-Up Relay -is located in the relay box under the left side of the dash.
 
Idle-Up Solenoid -is located at the top of the engine on the transaxle side.
 
In Manifold Heater Relay -is located at the right rear of the engine compartment, on the firewall.
 
Inhibitor Switch (automatic transaxle) -is located on the top of the transaxle, linked to the control cable.
 
Intermittent Wiper Relay -is located under the dash, to the right of the steering column.
 
Jet Mixture Solenoid -is located on the float chamber of the carburetor.
 
Lock-Up Control Unit -is located under the right side of the dash, at the kick panel.
 
Lock-Up Solenoid (automatic transaxle) -is located at the top of the transaxle.
 
Neutral Switch (manual transaxle) -is located in the right side of the transaxle.
 
Oil Pressure Switch -is located at the back of the block near the firewall, on the distributor side of the engine.
 
Oxygen Sensor Checker -is located on the center right side of the engine compartment.
 
Parking Brake Switch -is located in the center console at the base of the parking brake.
 
Power Steering Pump Switch -is located at the left front of the engine compartment.
 
Pulse Generator -is located at the top of the transaxle.
 
Radiator Thermo Switch -is located at the bottom of the radiator.
 
Rear Defogger Timer -is located under the left side of the dash.
 
Relay Box -is located under the left side of the dash.
 
Seat Belt Switch -is located at the base of driver's seat belt buckle.
 
Seat Belt Timer -is located under the center of the dash.
 
Select Switch (manual transaxle) -is located at the back of the block near the firewall, on the transaxle side of the engine.
 
Slow Cut Solenoid Valve -is located at the carburetor.
 
Starter Solenoid -is located on the rear bottom of the engine compartment.
 
Taillight Relay -is located in the relay box under the left side of the dash.
 
Throttle Position Sensor -is located at the base of the carburetor.
 
Vacuum Switch -is located at the left rear of the engine compartment, on the firewall.
 
Water Temperature Sender -is located at the top of the block on the distributor side.
 
Water Temperature Sensor -is located on the intake manifold.
 

1990-93 Excel


A/C Diode -is located under the right side of the dash.
 
A/C Dual Pressure Switch -is located in the receiver drier.
 
A/C Relay -is located at the right front of the engine compartment.
 
Accelerator Switch -is located on the accelerator pedal bracket.
 
Air Flow Sensor -is located in the air cleaner.
 
Automatic Transaxle Control Unit (TACU) -is located under the left front seat.
 
Automatic Transaxle Solenoid Valve -is located at the radiator side of the transaxle.
 
Back-Up Light Switch -is located on top of the transaxle.
 
Bowl Vent Valve (carburetor) -is located on the top of the carburetor, on float chamber cover.
 
Brake Fluid Sensor -is located in the master cylinder.
 
Cold Mixture Heater (carburetor) -is located under the carburetor.
 
Condenser Fan Relay -is located at the left front of the engine compartment.
 
Coolant Temperature Sensor -is located in the rear of the engine under the fresh air duct.
 
Crankshaft Angle Sensor -is located in the distributor.
 
Daytime Running Light Unit (Canada) -is located at the right front of the engine compartment.
 
Door Warning Switch -is located at the ignition switch.
 
EGR Control Solenoid Valve (California) -is located on the firewall in the engine compartment.
 
EGR Temperature Sensor (California) -is located on the EGR valve.
 
Electronic Control Unit (ECU) -is located under the dash on the left side.
 
Exhaust Gas Recirculation (EGR) Valve -is located near the fuel injection unit mounted to the engine block.
 
Feedback Solenoid Valve (carbureted) -is located at the carburetor.
 
Fuel Injection -see Multi-Point Injection (MPI).
 
Fuse Box Relay (red) -is located in the fusible link box, at the battery.
 
Fuse Box -is located in the left kick panel.
 
Hazard Flasher -is located in the relay box under the left side of the dash.
 
Headlight Relay (pink) -is located in the fusible link box, at the battery.
 
Idle Speed Control Sensor -is located on the fuel injection unit near the firewall.
 
Ignition Lock Switch (manual transaxle) -is located on the clutch pedal bracket.
 
Ignition Relay (pink) -is located in the fusible link box, at the battery.
 
Inhibitor Switch -is located on the top of the transaxle.
 
Intake Air Temperature Sensor -is located in the air cleaner.
 
Kick Down Switch -is located is located on the radiator side of the transaxle.
 
Main Fuse Box -is located on the side of the battery.
 
Main-Fusible Link Box -is located at the battery.
 
MPI Diagnostic Connector -is located at the left kick panel.
 
MPI Relay (blue) -is located in the fusible link box, at the battery.
 
Multi-Point Injection (MPI) Control Unit -is located to the left of the center console under the dash.
 
Noise Filter -is located at the left front of the engine compartment.
 
Oil Pressure Switch -is located behind the alternator.
 
Oil Temperature Sensor -is located is located on the radiator side of the transaxle.
 
Oxygen Sensor -is located in the exhaust manifold.
 
Oxygen Sensor Checker -is located on the center right side of the engine compartment.
 
PCV Valve -is located on the back of the valve cover, near the spark plug wires.
 
Power Steering Oil Pressure Switch -is located on the power steering pump.
 
Power Transistor -is located on the back of the valve cover near the injectors.
 
Power/Economy Switch -is located in the transaxle shift lever on the console.
 
Pulse Generator -is located on the top of the transaxle.
 
Purge Control Solenoid Valve -is located on the firewall in the engine compartment.
 
Radiator Fan Motor Relay -is located at the left front of the engine compartment.
 
Radiator Fan Resistor -is located near the thermostat switch.
 
Relay Box -is located under the left side of the dash.
 
Self Diagnosis Check Connector -is located in the left kick panel.
 
Slow Cut Solenoid Valve (carbureted) -is located at the carburetor.
 
Starter Relay -is located in the relay box under the left side of the dash.
 
Sub-Fusible Link Box -is located at the left front of the engine compartment.
 
Taillight Relay -is located in the relay box under the left side of the dash.
 
Thermo Valve -is located at the rear of the engine on the battery side.
 
Thermostat Switch -is located at the injector side of the engine near the firewall.
 
Throttle Position Sensor -is located on the front of the fuel injection unit, or on the carburetor.
 
Transaxle Control Unit (TCU) -is located under the right front seat.
 
Two Way Valve -is located in the fuel tank.
 
Vehicle Speed Sensor -is located in the speedometer.
 

Elantra


A/C Diode -is located under the right side of the dash.
 
A/C Dual Pressure Switch -is located in the receiver drier.
 
A/C Relay -is located at the right front of the engine compartment.
 
Accelerator Switch -is located on the accelerator pedal bracket.
 
Air Flow Sensor -is located in the air cleaner.
 
Automatic Transaxle Control Unit (TACU) -is located under the left front seat.
 
Automatic Transaxle Solenoid Valve -is located at the radiator side of the transaxle.
 
Back-Up Light Switch -is located on top of the transaxle.
 
Brake Fluid Sensor -is located in the master cylinder.
 
Condenser Fan Relay -is located at the left front of the engine compartment.
 
Coolant Temperature Sensor -is located in the rear of the engine under the fresh air duct.
 
Daytime Running Light Unit (Canada) -is located at the right front of the engine compartment.
 
Door Warning Switch -is located at the ignition switch.
 
EGR Control Solenoid Valve (California) -is located on the firewall in the engine compartment.
 
EGR Temperature Sensor (California) -is located on the EGR valve.
 
Electronic Control Unit (ECU) -is located under the dash on the left side.
 
Exhaust Gas Recirculation (EGR) Valve -is located near the fuel injection unit mounted to the engine block.
 
Fuse Box Relay (red) -is located in the fusible link box, at the battery.
 
Fuse Box -is located in the left kick panel.
 
Hazard Flasher -is located in the relay box under the left side of the dash.
 
Headlight Relay (pink) -is located in the fusible link box, at the battery.
 
Idle Speed Control Sensor -is located on the fuel injection unit near the firewall.
 
Ignition Lock Switch (manual transaxle) -is located on the clutch pedal bracket.
 
Ignition Relay (pink) -is located in the fusible link box, at the battery.
 
Inhibitor Switch -is located on the top of the transaxle.
 
Intake Air Temperature Sensor -is located in the air cleaner.
 
Kick Down Switch -is located is located on the radiator side of the transaxle.
 
Main Fuse Box -is located on the side of the battery.
 
Main-Fusible Link Box -is located at the battery.
 
MPI Diagnostic Connector -is located at the left kick panel.
 
MPI Relay (blue) -is located in the fusible link box, at the battery.
 
Multi-Point Injection (MPI) Control Unit -is located to the left of the center console under the dash.
 
Oil Pressure Switch -is located behind the alternator.
 
Oil Temperature Sensor -is located is located on the radiator side of the transaxle.
 
Oxygen Sensor -is located in the exhaust manifold.
 
Oxygen Sensor Checker -is located on the center right side of the engine compartment.
 
PCV Valve -is located on the back of the valve cover, near the spark plug wires.
 
Power Steering Oil Pressure Switch -is located on the power steering pump.
 
Power Transistor -is located on the back of the valve cover near the injectors.
 
Power/Economy Switch -is located in the transaxle shift lever on the console.
 
Pulse Generator -is located on the top of the transaxle.
 
Radiator Fan Motor Relay -is located at the left front of the engine compartment.
 
Radiator Fan Resistor -is located near the thermostat switch.
 
Relay Box -is located under the left side of the dash.
 
Self Diagnosis Check Connector -is located in the left kick panel.
 
Starter Relay -is located in the relay box under the left side of the dash.
 
Sub-Fusible Link Box -is located at the left front of the engine compartment.
 
Taillight Relay -is located in the relay box under the left side of the dash.
 
Thermo Valve -is located at the rear of the engine on the battery side.
 
Thermostat Switch -is located at the injector side of the engine near the firewall.
 
Throttle Position Sensor -is located on the front of the fuel injection unit.
 
Transaxle Control Unit (TCU) -is located under the right front seat.
 
Two Way Valve -is located in the fuel tank.
 
Vehicle Speed Sensor -is located in the speedometer.
 

Scoupe


Accelerator Switch -is located at the accelerator pedal bracket.
 
A/C Condenser Fan Relay -is located at the right front of the engine compartment.
 
A/C Dual Pressure Switch -is located in the receiver drier.
 
A/C Relay -is located at the right front of the engine compartment in the sub-fusible link box.
 
Air Flow Sensor -is located inside the air filter.
 
ASC Actuator -is located at the right rear of the engine compartment, above the master cylinder.
 
ASC Control Unit -is located under the left side of the dash.
 
Automatic Transaxle Control Unit -is located under the left front seat.
 
Automatic Transaxle Solenoid Valve Connector -is located on the front of the transaxle, near the dipstick.
 
Brake Fluid Switch -is located in the master cylinder.
 
Clutch Switch -is located on the clutch pedal bracket.
 
Control Relay -is located under the left side of the dash, next to the relay box.
 
Coolant Temperature Sensor -is located under the fresh air duct on the engine block.
 
Cooling System Resistor With Diode -is located on the firewall.
 
Crank Angle Sensor -is located inside the distributor.
 
Cruise Control -see Automatic Speed Control (ASC).
 
Daytime Running Light Control Unit (Canada) -is located at the right front of the engine compartment.
 
Diagnosis Terminal -is located in the left kick panel.
 
EGR Control Solenoid Valve -is located next to the purge control solenoid valve on the firewall.
 
EGR Temperature Sensor -is located on the EGR valve.
 
Electronic Control Unit (ECU) -is located under the left side of the dash.
 
Electronic Time and Alarm Control System -see ETACS.
 
ETACS Control Unit -is located under the left side of the dash.
 
Exhaust Gas Recirculation (EGR) Valve -is located next to the throttle body at the top of the engine.
 
Fuel Injection -see Multi Point Injection (MPI).
 
Fuse Box -is located at the left side kick panel.
 
Idle Speed Control (ISC) Servo -is located at the throttle body.
 
Inhibitor Switch -is located at the top of the transaxle.
 
Key Lock Control Unit -is located at the left quarter panel, behind the trim panel.
 
Key Lock Solenoid -is located at the ignition key in the steering column.
 
Kickdown Switch -is located at the back of the transaxle, near the right inner fender well.
 
Main Fusible Link Box -is located next to the battery.
 
MPI Control Relay -is located under the left side of the dash.
 
MPI Control Unit -is located at the right side kick panel.
 
Oil Temperature Sensor -is located is located at the front of the transaxle, near the dipstick.
 
Oxygen Sensor -is located in the exhaust manifold near the alternator.
 
PCV Valve -is located on the valve cover.
 
Power Steering Oil Pressure Switch -is located on the power steering pump.
 
Power Transistor -is located at the valve cover near the injectors.
 
Pulse Generator -is located at the top of the transaxle.
 
Purge Control Solenoid Valve -is located on the firewall in the engine compartment.
 
Relay Box (engine compartment) -is located at the left front of the engine compartment.
 
Relay Box (passenger compartment) -is located under the left side of the dash.
 
Stop Light Switch -is located on the brake pedal bracket.
 
Thermo Valve -is located on the right side of the engine next to the fresh air duct.
 
Throttle Position Sensor (TPS) -is located at the throttle body.
 
Transaxle Control Unit -is located under the right front seat.
 
Two Way Valve -is located at the fuel tank.
 
Vehicle Speed Sensor -is located in the speedometer.
 

Sonata


Accelerator Switch -is located at the accelerator pedal bracket.
 
A/C Relay -is located at the right front of the engine compartment in the sub-fusible link box.
 
A/C Pressure Switches -are located at the left front of the engine compartment and at the center of the firewall.
 
Air Flow Sensor -is located inside the air filter.
 
ASC Actuator -is located at the right rear of the engine compartment, above the master cylinder.
 
ASC Control Unit -is located under the left side of the dash.
 
Automatic Transaxle Solenoid Valve Connector -is located on the front of the transaxle, near the dipstick.
 
Blower Relay -is located at the right front of the engine compartment.
 
Clutch Switch -is located on the clutch pedal bracket.
 
Condenser Fan Relay -is located at the left front of the engine compartment.
 
Control Relay -is located under the left side of the dash, next to the relay box.
 
Control Relay -is located under the right side of the dash, at the kick panel.
 
Coolant Temperature Sensor (except V6) -is located next to the intake manifold on the engine block.
 
Coolant Temperature Sensor (V6) -is located at the right front of the engine, next to the engine lifting tab.
 
Coolant Temperature Sensor -is located at the front of the engine, near the radiator.
 
Cooling System Resistor With Diode -is located on the firewall.
 
Crank Angle Sensor -is located inside the distributor.
 
Cruise Control -see Automatic Speed Control (ASC).
 
Daytime Running Light Control Unit (Canada) -is located at the right front of the engine compartment.
 
Dedicated Fuse -is located in the sub-fusible link box.
 
Diagnosis Terminal -is located under the left side of the dash.
 
EGR Temperature Sensor -is located on the EGR valve.
 
Electronic Time and Alarm Control System -see ETACS.
 
ETACS Control Unit -is located under the left side of the dash.
 
Exhaust Gas Recirculation (EGR) Valve -is located next to the throttle body at the top of the engine.
 
Fuel Injection -see Multi Point Injection (MPI).
 
Fuse Box -is located at the left side of the dash, near the hood release latch or at the kick panel.
 
Idle Speed Control (ISC) Servo -is located at the throttle body.
 
Inhibitor Switch -is located at the top of the transaxle.
 
Key Lock Control Unit -is located under the center of the dash, at the console.
 
Key Lock Solenoid (automatic transaxle) -is located in the shift lever assembly.
 
Kickdown Switch -is located at the back of the transaxle, near the right inner fender well.
 
Main Fusible Link Box -is located next to the battery.
 
MPI Control Relay -is located at the right kick panel.
 
MPI Control Unit -is located at the right side kick panel.
 
Oil Temperature Sensor -is located is located at the front of the transaxle, near the dipstick.
 
Oil Temperature Sensor -is located is located at the front of the transaxle, near the dipstick.
 
Oxygen Sensor -is located in the exhaust manifold.
 
Park Position Switch -is located in the shift lever assembly.
 
Positive Crankcase Ventilation (PCV) Valve -is located on the valve cover.
 
Power Transistor (except 3.0L -is located at the left rear of the engine compartment, on the firewall.
 
Power Transistor (3.0L) -is located at the rear of the engine, near the injectors.
 
Pulse Generator -is located at the top of the transaxle.
 
Purge Control Solenoid Valve -is located at the right rear corner of the engine compartment.
 
Relay Box -is located under the left side of the dash.
 
Stop Light Switch -is located on the brake pedal bracket.
 
Sub-Fusible Link Box -is located at the right front of the engine compartment.
 
Sunroof Relays -are located at the sunroof motor.
 
Thermo Valve (except V6) -is located on the right side of the engine next to the fresh air duct.
 
Thermo Valve (V6) -is located near the throttle body at the front of the engine.
 
Throttle Position Sensor (TPS) -is located at the throttle body.
 
Two Way Valve -is located at the fuel tank.
 
Vehicle Speed Sensor -is located in the speedometer.
 

 
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